Abstract:
This system is implemented to improve the clarity of audio
echo speech signal. Acoustic echo cancellation (AEC) greatly
enhances the audio quality of loudspeaker enclosure microphone
(LEM) system. The presented implementation is based on LMS
and NLMS algorithm. This work shows that the use of the
NLMS algorithm will eliminate much of the trade-off between
residual error with the fixed step-size least mean-square (LMS)
algorithm and therefore resulting in an improved performance.
This study is also outlines the comparative efficiency of NLMS
over LMS through and Spectrogram. Each of the acoustic echo
cancellation algorithms is implemented by Matlab
programming.
